Home / 887,234.72-1,330,456.80-255,998.56

Finding the Fourth Proportional to 887,234.72, 1,330,456.80 and 255,998.56

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Solution

The fourth proportional to 887,234.72, 1,330,456.80 and 255,998.56 is: 383,883.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    887,234.72 : 1,330,456.80 = 255,998.56 : x
  2. Step 2: Convert to fraction form
    887,234.72/1,330,456.80 = 255,998.56/x
  3. Step 3: Cross multiply
    887,234.72x = 1,330,456.80 × 255,998.56
  4. Step 4: Simplify right side
    887,234.72x = 340,595,024,942.21
  5. Step 5: Solve for x
    x = 340,595,024,942.21/887,234.72
  6. Step 6: Final answer
    x = 383,883.79

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.